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A Boat Traveled 210 Miles Downstream. X+y miles per hour and speed down. What is the speed of the boat in still water?
"a boat travels 210 miles downstream..." YouTube from www.youtube.com
As boat travelled 210 miles downstream in 10 hours it's speed is 210/10=21 miles per hour. The trip downstream took 10hrs, the trip back took 70hrs. D = 210 km the distance downstream and back.
"a boat travels 210 miles downstream..." YouTube
Let the speed of boat in still water be x miles per hour and speed of current be y miles per hour. What is the speed of the boat in still water? 10(v + c) = 210/2. The trip downstream took 12 hours.
